Rotary apparatus operating as pump or motor



Apr. 10, 1923. 1,451,2g4

P. VOREAUX ET AL ROTARY APPARATUS OPERATING AS PUMP OR MOTOR- Filed Aug.,10, 1920 5 sheets-sheetf;

Apr. 10, 1923.

P. VOREAUX ET AL ROTARY APPABATUS OPERATING AS PUM P OR MOTOR Filed Aug.10, 1920 5 sheetssheefi2 Apr. 10, 1923. 1,451,284

F. VOREAUX ET AL.

ROTARY APPARATUS OPERATING AS PUMP OR MOTOR Filed Aug. .10, 19205sheebs-sheeb 5 P. VOREAUX ET AL ROTARY APPARATUS OPERATING AS FUME ORMOTOR Apr. 10, 1923. i,4fi

Fled Aug. 10, 1920 5 sheeos-sheet 4 Apr. 10, 1923.

' P. VOREAUX; ET AL ROTARY APPARATUS OPERATING AS PUMP OR MOTOR 5sh'eets-sheet 5 Filed Aug. 10, 1920 Patentel 1a i923.

a specification.

a pump or a motor, an

. mg drawing given by and chiefly in the aairaa saaaas aAaaaa aaaaaaoaaaca PAUL VREA''X .LGD RAYMOND BABEL, DE PARIS, FRANCE.

ROTARY arraaarus ornaaaiue-as Puma 03 aroroa( Application filed August10, 1920. Serial 1:g, 02,726,

Ta aZZ wlwm z't may concemi: r -Be it known that We, PAUL Vonmux andRAYMOND BABL, citizens of the Republic of France, residing at Paris,France, have invented certain neV and useful Improvements in RotaryApparat'us Operating as ump or Motor, of which the following is Thisinvention relates to a rotary apparatus which 'is desi9ned to operate asmakes use of fluide of all kinds, either liquids orgases. The apparatuscomprises on the one hand a star-shaped cylinder combination rotatingabout a stationary shaft serving as the valvegear for inlet and deliveryof fiuid, and on the other hand a main casing which jdraws along thepistons in its rotational motion 'about an axis having an eccentricdisposition withreference to the axis of the star-shaped cylindercombination, in such manner as to cause variations in the volumecomprised between the head of each piston and the stationary shafthaving the cylinders rotiting thereon, and thus to (affect thecirculation of the fluid in case the apparatus works as. a*pump, orinvrsely, to affect the rotation of the apparatus if the compressedfluid is delivered into the cyliners.

One of the -particular features of theV.in-. mention resides in themethod of assembling the difierent. members of the apparatus, method ofconnecting the pistons with the outer casing by means of rods secured tothe latter, the said pistons being adapted to slide along these rods.Another special feature lies in the valve gear combination afiorded bythe rotation of the star-shaped cylinder makeup; this latter heinemployed for covering and uncoverihg tl%e ports of the fluidintake anddelivery passages the said passa es being b tion of the pistons alongthe rods d 03 oi provided in the stationary shaft having rotatingthereon the star-shaped cylinder combination.

This invention also comprises various imprdvements designed to obviatethe leakage Which is fiable t0 occur either between the cylinders, alongthe shaft, or casing.

The following description and accompanv Way of example, ex-

- plin how the invention can be carned out.

Fig. 1 is a cross-section of the apparatus perpendicular to its axis ofrotation, this in the main section. hein of Fig. 2 wit certain partssuch as the pistons sh0vvn inexterior view.

Fig. 2 is a longitudinal section of the I'O" tary apparatus partly inexterior view.

Figs. 3, 4: and 5 relate to an alternative form of the valve gear..Figs. 3 and 41 correspond to sections along YY and Z-Z of Fig. 2 inWhich the valve gar is modified talien along the line XX according tothe said alternative form; Fig.

5 is a section through the end ofthe dliveryL passage.

Figs. 6 and 7 show respectively in vertical and in longitudinal sectionalong the line of- Fig. 6, an apparatus containing the nnprovementsdesigned. to secure a better tightness.

The apparatus according to this invention comprises a star-shapedcylinder combination a shaft 6. The cylinders a (t a contain the pistonsc c c traversed by'the 'rods d d d rigidly sebured to the outer casing 8which rotates upon the journals i' mounted in fixed position '*buteccentric with reference to the shaft b.

It will be observed according to the foregoing that the cylindercombination a,- a*. a rotates about the axis UU of the sta tionaryshaft, while the pistons c 0 c rotate about the stationary shaft V V, ofthe journals f. ;Under these conditions, when the casing r0tates,carrying with it in its movement the cylinders a (1?, (L and the pistonsc (2 0 these latter will also have a displacement relative to thecylinders a a a i. e., they will move within the cylinders with anamplitude of longitudinal displacement equal to one-half the value ofthe eccentricity between' the axes UU and VV. This longitudinalmovementof the pistons .in take place by reason of thesliding disposi- Moreover,the journals 7 and the shaft b a a rotating about a stationary thecylinders can contain the passages 7H3 for the intake and delivery ofthe fluid, admitting that the apparatus operates as a pump, i e., thatthe casing 6 is given a rotary movement, for instancein the direction ofthe arrow, Fig. 1.

t will be observed that when the casing has made onathird of arevolution, the cylinder a which is drawn in the rotary movennt of thecasing 9 ,by the piston 0" (which latter is drawnby the"rod d rigidlysecured.to the casing) has'now taken the tons, and these shafts D D D Dare held at their ends in the bosses P P P P cast together with the maincasing m, a,soft metal ring, for instance in bronze Q Q? Q;' Q beingtien.

It is of course understood that the sliding disposition of the pistonswhich is obtained simply by the use of a shaft having the piston sliding thereon; could be obtained in any other suitable manner, andchiefly by providing each piston with rollers, with a small carriage orwith any other suitable sliding means.

This invention is not of course limited to the hereinbefor e describedarrangements, but is susceptible of various modifications and changesWhich would be' within the spirit of the invention, and as a particularcase it may be observed that the cylinders mg be provided in any number.

aving thus described the nature of our said invention and the best meanswe know prferably disposed between each piston and its shaft. Thisdisposition af-. fords an absolutely tight construction for the casing,this casingbeing no longer pro-' vided with holes as in the predingdescrip-' of carrying the same into practical effect, we daim:

A rotary apparatus operating either as compressor or motor, comprismg afanshaped cylinder combination a stationary hollow shaft having the saidcylinder combination rotatable thereon, intake and delivery passagesprovided in the stationary sha'ft, a main casing rotatable about an axishaving an eocentric disposition with reference to the axis of'rotationof the sa-id cylinder ombination, rods rigidly secured to thesaiid'casing and having the said pistons slidabl thereon, of thedelivery passage of the said stationary hollow shaft, a;n auxiliaryintake passage disposed within the hollow shaft and provided withvalves, and an auxiliary delivery passage disposed within the hollowshafl; and provided with valves.

a valvedisposed at the end In witness whereof, we have hereunto signedour names in the presence of the subscribing witness.

- PAUL VOREAUX;

' RAYMOND BABEL. Witness:

CLEMENT'S. EDWARDS.

